12389375

素因数分解:

$5^4\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:524

約数の個数: 20

約数和(自身を含む): 15876168

約数和(自身を除く): 3486793

約数列:

[1, 5, 25, 43, 125, 215, 461, 625, 1075, 2305, 5375, 11525, 19823, 26875, 57625, 99115, 288125, 495575, 2477875, 12389375]

約数ペア:

[(1, 12389375), (5, 2477875), (25, 495575), (43, 288125), (125, 99115), (215, 57625), (461, 26875), (625, 19823), (1075, 11525), (2305, 5375)]